AC3 5.1, AAC 5.1 and DTS 5.1 no sound, AC3 Stereo sound OK

Dev Community Apps & Creations
1
ATV2 or ATV3?: ATV3
 
Your ATV firmware version (found under the ATV settings > general > about > Apple TV software): 5.2.1 (6025)
 
The DNS server set on the ATV (found under the ATV settings > general > network > DNS): 10.0.1.11
 
The device and operating system (including version number) that PlexConnect is installed on: MacBook Pro OS X 10.8.4
 
The local IP address of the device that PlexConnect is installed on: 10.0.1.11
 
The device and operating system (including version number) that the Plex media server (PMS) is installed on: iMac OS X Server 10.8.3
 
The local IP address of the device that the Plex media server (PMS) is installed on: 10.0.1.8
 
Where your media is stored (e.g. internal drive): External Smartstor DS4600 FireWire
 
The PlexConnect version number (or if using Github source then a time and date of download; look at the creation date of the folder):
: I have used new-movie-sections commit acde9b978e and XML_templates commit 5447826f11
 
Plex Media Server-0.9.8.0.36
 
Plex Media Server Advanced Preferences:
 
Transcoder
 
Segmented transcoder timeout: 20
 
Timeout in seconds segmented transcodes wait for the transcoder to begin writing data
 
Transcoder default duration: 120
 
Duration in minutes to use when transcoding something with an unknown duration
 
Transcoder temporary directory: none
 
Directory to use when transcoding for temporary files
 
Transcoder default throttle buffer: 60
 
Amount in seconds to buffer before throttling the transcoder
 
WebKit window visible
Show the WebKit window used by plugins instead of placing it off screen: False
 
Enable Dolby Digital during AirPlay: True
When playing video with AirPlay on an Apple TV, allow Dolby Digital audio to play. You must go to Settings on the Apple TV and set Dolby Digital Out to "On" in the Audio & Video menu.
 
Enable Media Link down-mixing of DTS audio.: False (as advised by f00b4r in post #38 http://forums.plexapp.com/index.php/topic/68930-transcoding-issues/page-2)
Media Link does not support DTS audio in certain regions. The Plex Media Server can automatically convert DTS to stereo so that it will play.
 
Offer higher bitrates over 3G connections: True
 
Plex/Web Advanced Preferences:
 
Player:
 
Direct Play: True
Allows the player to play compatible media without any conversion. In most browsers, direct play supports MP4 videos with h264 video and AAC audio. Videos with subtitles cannot be played directly.
 
Direct Stream: True
Allows the server to copy compatible audio and video streams without converting them.
 
Always Use Highest Resolution: True
When multiple resolutions are available for a video, automatically use the highest possible resolution.
 
Allow Direct Play of AC3 Audio: True
Allow MP4 videos with AC3 audio to be played directly. Browser support for AC3 audio is limited.
 
Prefer AAC Audio: True
Prefer AAC over MP3 when transcoding audio. Some devices, like the Wii U, only support HLS with AAC audio.
 
Subtitle Size: Normal
 
Audio Boost: Large
 
ATV Settings:
 
Dolby Digital On
Audio Output Auto
 
PlexConnect Preferences:
 
Transcoder:
 
Force Direct Play: False
Force Transcode: False
Transcoder Quality 1080p 8.0 Mbps
 
Using Airplay Mirroring and Plex HT all sound types will play with sound. Output is to Bose Series 12 with 5:1 Surround Sound System
 
ISSUE:
 
Files with AC3 Stereo all play correctly with Sound
Files with AC3 5.1. AAC 5.1 and DTS 5.1 play with no Sound.
 
Please can anyone help?
 
I love this project and I really would love to get it working with all my media files and a big thank you for making this possible!
2

Turn off the audio boost setting

3

Turn off the audio boost setting

I'm afraid not - tried many different files.

BUT - when I make a change like that, do I need to restart PMS and PlexConnect for the change to be recognised?

4

This is a long shot, but I have Perian installed although it is no longer supported. The reason for this because earlier this year I re-installed my System and omitted installing Perian and was really frustrated as my Bose system couldn't get beyond a certain volume. When I re-installed Perian I got my extra volume boost back. Perian has Audi Options - Stereo, Dolby Pro Logic, Dolby Pro Logic II and Multi-Channel Ouput. Then another option to Play Soft Sounds Normally or Louder. And another option for Sub-Titles. Now I'm no expert on this and I barely understand it but all I know is that by having it installed it improves my sound volume using the Dolby Pro Logic II setting and the Play Soft Sounds Louder. When you choose Multi-Channel output it links to this page http://www.cod3r.com/2008/02/the-correct-way-to-enable-ac3-passthrough-with-quicktime/

Could this be relevant to my issues? I'm going to give all the options a try and see if this can restore sound for AC3 5.1, AAC 5.1, and DTS 5.1

Any input welcome as I'm in the dark here!!

5

Disabling Perian didn't do anything. I'm stumped. As nobody has commented on this post am I to assume that nobody else is experiencing this problem? I am rather disappointed that none of the developers have responded or maybe it's because I'm fairly new here. I'm hoping this issue will be resolved further down the line in this project, of which I am a wholehearted supporter BTW.

6

Solved partially! I disabled Direct Stream in Plex/Web -> Advanced Settings -> Player

Now I have sound but only in Stereo I think.

Better than no sound at all.

7

Are you using the latest build?

8

I'm really not quite sure to be honest - but I'm trying with it now.Yes and it's working fine even .mkv files with DTS 5.1 but only getting stereo. Why do you ask?

9

Yes I am using the latest build as the audio/subtitle menus are combined and work to my defaults too - this is great work!

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